Merged r13898 into 3.17 branch.

Fix white space matching in latin-1 strings wrt \u00a0.

BUG=181422
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14053007

git-svn-id: https://v8.googlecode.com/svn/branches/3.17@14276 ce2b1a6d-e550-0410-aec6-3dcde31c8c00